Carbide Square End Mills for Carbon Fiber, Fiberglass, and Graphite



A diamond or diamondlike coating on these end mills makes them good for machining abrasive material, such as carbon fiber, fiberglass, and graphite. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
Diamondlike-carbon (DLC) coated end mills are an economical option for short runs and intermittent use. Diamond-coated end mills are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Diamondlike Carbon (DLC) Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
1/32" | 1/8" | 1/16" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/32" | 1/8" | 1/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 5/16" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 25/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 15/32" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/64" | 1/8" | 35/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 5/8" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/32" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 1 3/8" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/32" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1 1/2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/16" | 5/16" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 1 1/4" | 3" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3 Flute | |||||||||
1/64" | 1/8" | 5/64" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/32" | 1/8" | 1/16" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/32" | 1/8" | 5/32" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/64" | 1/8" | 1/4" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/8" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 1/2" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 3/16" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 3/4" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 3" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
4 Flute | |||||||||
1/32" | 1/8" | 1/16" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/32" | 1/8" | 1/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 5/16" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 25/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 15/32" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/64" | 1/8" | 35/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 5/8" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/32" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 1 3/8" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/32" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1 1/2" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/4" | 1/4" | 1 1/2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
5/16" | 5/16" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3/8" | 3/8" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 1 1/4" | 3" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1mm | 3mm | 5mm | 38mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
1.5mm | 3mm | 7.5mm | 38mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
2mm | 3mm | 10mm | 38mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
2.5mm | 3mm | 12.5mm | 38mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
3mm | 3mm | 15mm | 38mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
4mm | 4mm | 20mm | 50mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
4.5mm | 5mm | 20mm | 50mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
5mm | 5mm | 20mm | 50mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
6mm | 6mm | 25mm | 63mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
8mm | 8mm | 28mm | 63mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
10mm | 10mm | 30mm | 70mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
12mm | 12mm | 32mm | 74mm | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
Diamond Coated | |||||||||
2 Flute | |||||||||
0.2mm | 3mm | 0.3mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
0.3mm | 3mm | 0.45mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
0.4mm | 3mm | 0.6mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
0.5mm | 3mm | 1.5mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
0.6mm | 3mm | 1.8mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
0.8mm | 3mm | 2.4mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1mm | 3mm | 3mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
4 Flute | |||||||||
1/32" | 1/8" | 3/32" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
1/16" | 1/8" | 3/16" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
3/32" | 1/8" | 3/8" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 00000 |
1/8" | 1/8" | 1/2" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/8" | 1/8" | 1" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3/16" | 3/16" | 5/8" | 2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/4" | 1/4" | 3/4" | 2 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/4" | 1/4" | 1 1/4" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3/8" | 3/8" | 7/8" | 2 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/2" | 1/2" | 1" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/2" | 1/2" | 2" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
2mm | 3mm | 6mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3mm | 3mm | 12mm | 75mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
4mm | 4mm | 15mm | 75mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
6mm | 6mm | 20mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
8mm | 8mm | 25mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
10mm | 10mm | 25mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
12mm | 12mm | 25mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
Carbide Square End Mills for Honeycomb Panels




Cut into the sides and make slots in honeycomb panels without damaging any layers. Honeycomb panels are commonly used in aerospace and automotive applications because they’re strong yet lightweight, but these same qualities make them difficult to machine. Unlike normal end mills, these have a left-hand helix and push material downward as they cut, preventing layers of the composite material from separating. The serrated edges break the honeycomb into small pieces, minimizing uncut fibers that can occur in composite material. A diamond coating on these end mills allows them to machine abrasive material, such as carbon fiber, fiberglass, and graphite.
They have a square end for milling square-bottomed slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface. They are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.
Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking.
End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
For technical drawings and 3-D models, click on a part number.
Mill Dia., mm | Shank Dia., mm | Lg. of Cut, mm | Overall Lg., mm | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Diamond Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
5 Flute | |||||||||
6 | 6 | 18 | 70 | Equal | 15° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 0000000 |
6 Flute | |||||||||
8 | 8 | 24 | 80 | Equal | 15° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
8 Flute | |||||||||
10 | 10 | 30 | 90 | Equal | 15° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
9 Flute | |||||||||
12 | 12 | 36 | 110 | Equal | 15° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
Replaceable Carbide-Insert End Mills for Manual Milling Machines

Use these tools with low-horsepower, manual milling machines. They have clamps for holding inserts that do not have a mounting hole. Replaceable carbide-insert end mills reduce waste and cost in high-volume jobs—when the cutting edges dull, replace the carbide inserts instead of the entire tool. End mills have a square cut style for milling square slots, pockets, and edges. All are noncenter-cutting for operations where the sides of the teeth do most of the work, such as shoulder milling, contouring, and finishing. They cannot be used for plunge cuts.
R8-shank end mills have internal threads on the tapered end for connecting to a drawbar.
Carbide inserts have a wear-resistant titanium-nitride (TiN) coating.

Shank Thread | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Mill Dia. | Shank Dia. | Gender | Size | Overall Lg. | Cut Style | Material | Number of Inserts Required | End Mill Type | Each | |
Straight Shank | ||||||||||
3/4" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 1 | Noncenter Cutting | 0000000 | 000000 |
1" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 1 | Noncenter Cutting | 0000000 | 000000 |
1 1/4" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 2 | Noncenter Cutting | 0000000 | 000000 |
1 3/8" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 2 | Noncenter Cutting | 0000000 | 000000 |
1 1/2" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
1 1/2" | 1" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
2" | 3/4" | __ | __ | 3 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
2" | 1" | __ | __ | 6 1/4" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
R8 Taper Shank | ||||||||||
1" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 1 | Noncenter Cutting | 0000000 | 000000 |
1 1/4" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 2 | Noncenter Cutting | 0000000 | 000000 |
1 1/2" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
1 5/8" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
1 3/4" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
2" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 3 | Noncenter Cutting | 0000000 | 000000 |
2 1/2" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 5 | Noncenter Cutting | 0000000 | 000000 |
3" | __ | Female | 7/16"-20 | 5 7/8" | Square | Black-Oxide Steel | 5 | Noncenter Cutting | 0000000 | 000000 |

Tip Radius | Insert Code | Insert Size | Thick. | For Use On | Each | |
Titanium Nitride (TiN) Coated | ||||||
---|---|---|---|---|---|---|
1/64" | TPG-321 | 3/8" | 1/8" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
1/32" | TPG-322 | 3/8" | 1/8" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
3/64" | TPG-323 | 3/8" | 1/8" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
1/16" | TPG-324 | 3/8" | 1/8" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
Carbide Ball End Mills for Carbon Fiber, Fiberglass, and Graphite




These end mills have a diamond or diamondlike coating for machining abrasive material, such as carbon fiber, fiberglass, and graphite. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking. They have a ball end for milling rounded slots, slopes, and contours. All are center cutting, allowing plunge cuts into a surface.
End mills with fewer flutes provide better chip clearance for high-volume, high-speed plunge, slotting, and roughing cuts; end mills with more flutes provide a finer finish and operate with less vibration when run at high speeds.
Diamondlike-carbon (DLC) coated end mills are an economical option for short runs and intermittent use. Diamond-coated end mills are good for long production runs. They run twice as fast as other carbide end mills and last up to 30 times longer.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Diamondlike Carbon (DLC) Coated | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 Flute | |||||||||
1/32" | 1/8" | 1/16" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/32" | 1/8" | 1/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 5/16" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 25/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 15/32" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/64" | 1/8" | 35/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 5/8" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/32" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 1 3/8" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1 1/2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/16" | 5/16" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 1 1/4" | 3" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3 Flute | |||||||||
1/64" | 1/8" | 5/64" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/32" | 1/8" | 5/32" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/64" | 1/8" | 1/4" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/8" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 1/2" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 3/16" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 3/4" | 2 1/2" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 3" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
4 Flute | |||||||||
1/32" | 1/8" | 1/16" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/32" | 1/8" | 1/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 5/16" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/16" | 1/8" | 1/2" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/64" | 1/8" | 25/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/32" | 1/8" | 15/32" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/64" | 1/8" | 35/64" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 5/8" | 1 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/8" | 1/8" | 1" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
5/32" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 3/4" | 2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 1 1/8" | 3" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/16" | 3/16" | 1 3/8" | 4" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
7/32" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1 1/2" | 4" | Equal | 35° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
1/4" | 1/4" | 1 1/2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
5/16" | 5/16" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 00000 |
3/8" | 3/8" | 1" | 2 1/2" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3/8" | 3/8" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 1 1/4" | 3" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 2" | 6" | Equal | 33° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
Diamond Coated | |||||||||
2 Flute | |||||||||
0.2mm | 4mm | 0.4mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
0.3mm | 4mm | 0.6mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
0.4mm | 4mm | 0.8mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
0.5mm | 4mm | 2.5mm | 40mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
0.6mm | 4mm | 3mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
0.8mm | 4mm | 4mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1mm | 4mm | 5mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1.2mm | 4mm | 6mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1.5mm | 4mm | 7.5mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
2mm | 4mm | 10mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3mm | 6mm | 15mm | 60mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
4 Flute | |||||||||
1/32" | 1/8" | 3/32" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/16" | 1/8" | 3/16" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3/32" | 1/8" | 3/8" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/8" | 1/8" | 1/2" | 1 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/8" | 1/8" | 1" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3/16" | 3/16" | 5/8" | 2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/4" | 1/4" | 3/4" | 2 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/4" | 1/4" | 1 1/4" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
3/8" | 3/8" | 7/8" | 2 1/2" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/2" | 1/2" | 1" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
1/2" | 1/2" | 2" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 00000000 | 000000 |
Carbide Rounded-Edge Square End Mills
for Carbon Fiber, Fiberglass, and Graphite


A diamond coating on these end mills allows them to machine abrasive material, such as carbon fiber, fiberglass, and graphite. Good for long production runs, they run twice as fast as other carbide end mills and last up to 30 times longer. These end mills are made of solid carbide, making them harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on materials. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking.
Often used for slotting and pocketing cuts in mold and die making, these end mills have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as corner radius end mills. All are center cutting, allowing plunge cuts into a surface.
For technical drawings and 3-D models, click on a part number.
Mill Dia. | Shank Dia. | Lg. of Cut | Corner Cut Radius | Overall Lg. | Flute Spacing | Helix Angle | For Use On | End Mill Type | Each | |
Diamond Coated | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
4 Flute | ||||||||||
1/8" | 1/8" | 1/8" | 0.015" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 0000000 |
1/8" | 1/8" | 1/8" | 0.031" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3/16" | 3/16" | 3/16" | 0.062" | 3" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/4" | 1/4" | 1/4" | 0.015" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/4" | 1/4" | 1/4" | 0.03" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/4" | 1/4" | 1/4" | 0.062" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3/8" | 3/8" | 3/8" | 0.015" | 4" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
1/2" | 1/2" | 1/2" | 0.015" | 6" | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
3mm | 3mm | 3mm | 0.5mm | 75mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
4mm | 4mm | 4mm | 0.5mm | 75mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
6mm | 6mm | 6mm | 0.5mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
6mm | 6mm | 6mm | 1mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
8mm | 8mm | 8mm | 0.5mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
8mm | 8mm | 8mm | 1mm | 100mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
10mm | 10mm | 10mm | 0.5mm | 125mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
10mm | 10mm | 10mm | 1mm | 125mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
12mm | 12mm | 12mm | 0.5mm | 150mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
12mm | 12mm | 12mm | 1mm | 150mm | Equal | 30° | Carbon Fiber, Fiberglass, Graphite | Center Cutting | 0000000 | 000000 |
Router Bits for Composites


The sharp cutting edges and flute shapes of these tools are specifically designed to cut through tough composite materials, such as carbon fiber and fiberglass, with minimal resistance. This means less strain on your router and more control when cutting, leading to smooth cuts. They're made of solid carbide for longer tool life and faster cutting speeds than high-speed steel.
Diamond-Pattern Flutes—Small, staggered teeth aggressively cut, yet leave a smooth finish.
Use bits with a square cut style to cut slots, pockets, and edges.
Plunge-cutting bits let you cut directly into the workpiece from above. Other bits are best for operations where the peripheral teeth do most of the work, such as trimming, contouring, and finishing.
Cutting Dia. | Lg. of Cut | Shank Dia. | Overall Lg. | For Tool Type | For Use On | Each | |
Uncoated Carbide | |||||||
---|---|---|---|---|---|---|---|
Diamond-Pattern Flutes with a Square Cut Style—Plunge Cutting | |||||||
1/8" | 1/2" | 1/8" | 2" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 0000000 |
3/16" | 5/8" | 3/16" | 2" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |
1/4" | 3/4" | 1/4" | 2" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |
1/4" | 1 1/2" | 1/4" | 3" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |
3/8" | 1 1/8" | 3/8" | 3" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |
1/2" | 1 1/8" | 1/2" | 3 1/2" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |
1/2" | 2 1/8" | 1/2" | 4" | CNC Machine | Carbon Fiber, Graphite | 0000000 | 000000 |